3e76ef5281cef693d3defe061f3c02a542a008f0
spring.jpa.open-in-view=true (the default) holds a DB connection open for the entire HTTP request lifecycle. Under concurrent dashboard API calls (Promise.allSettled fires 3 at once), the pool of 10 is exhausted and the backend crashes with connection timeout errors. Setting open-in-view=false releases connections as soon as each @Transactional method completes. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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